Some of these guys are jokes that have no business being on this list.
Slug, Sage Francis, Immortal Technique, and I'm sure I'm forgetting a bunch of other underground artists that I once used to listen to are better than half the guys on this list.
Phonte, Aesop, Aceylone, etc. you know they wouldn't dig into the underground and do actual research for this. It's just 50 Most Popular Rappers ranked by who has best lyrics.